You should never report a police officer in motion... By the time the report makes it to the Waze servers then out to the client the officer is long gone (and exponentially more & more difficult to predict location).

Any officer could have their RADAR/lasers on at anytime (and can turn it on/off), so you should consider it on all the time.

As for lurking/occupied, report it anyway. The aforementioned delay could be the difference between the officer releasing his target and waiting for the next one in the same spot.

As for hidden/visible, use your best judgement... Hidden could apply to the guy very visible from the road, but behind a blind curve where you can't see him till it's too late...

Police @ construction sites; I rarely encounter any of them running radar nor they're there for speed traps but more for safety so I feel they are somewhat of a useless report. The construction report itself would be more useful.

I do try to make a note quickly if they are running radar/laser or with a customer (already pulled over someone). Usually around here once they are done, they are back on the road so at least people know.

I guess if you're not running any radar/laser detector (or you're in VA and are illegal) it would be hard but at least it's not too hard to spot what a speed trap looks like. There definitely should be an option.